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7R Train Wheel, Flangeless, Technic Compatible 3d printed

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White Natural Versatile Plastic
7R Train Wheel, Flangeless, Technic Compatible 3d printed
7R Train Wheel, Flangeless, Technic Compatible 3d printed

DIGITAL PREVIEW
Not a Photo

7R Train Wheel, Flangeless, Technic Compatible

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Product Description
Designed to be compatible with the "LEGO Technic Trains" project, this is a flangeless driver for a functional pneumatic engine, or for steam locomotives in general.  The rolling diameter is 7 studs, which I designate 7R.  The part overall is 7x7x1 studs.  Equivalent to a #17 on the system train wheel size chart. 

The Technic Trains rails are 7 studs edge to edge, essentially 1 inch to 1 mm scale (1:25) in Standard-gauge. So this wheel is equivalent to a 56 inch / 1420mm driver.

See flanged 7R wheel description for further details, this part is intended to be used as a companion to that one - same rolling radius, no flange, for 2-6-0s etc.
Details
What's in the box:
model-7r-wheelb-v1
Dimensions:
5.56 x 0.78 x 5.56 cm
Switch to inches
2.19 x 0.31 x 2.19 inches
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Success Rate:
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Rating:
Mature audiences only.
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